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What are the compounds that kill bacterial cells without harming the cells of humans?
They are called antibiotics (meaning against life) and generally interfere in only a few specific chemical reactions, those found in bacterial cells but not human cells.
Bacterial smears are fixed before staining to?
affix the cells to the slide and to kill bacteria
Agents used to kill or inhibit growth of vegetative cells are generally called?
disinfectant
What compound kills bacteria without harming the cells of humans?
They are called antibiotics (meaning against life) and generally interfere in only a few specific chemical reactions, those found in bacterial cells but not human cells.
Why does penicillin kill only actively multipling cells and lysozyme will kill cells in any stage of growth?
Penicillin inhibits transpeptidase, and enzyme that is necessary for bacterial cell wall synthesis. If a cell is not actively multiplying, then no cell wall synthesis is occurring and, therefore, penicillin does not inhibit the bacteria.
What inhibits bacterial growth but does not kill bacteria?
Bacteriostatic agent
A chemical that kills bacteria or slows their growth is called?
Antibiotics, is a generalized answer, however there are different types of antibiotics. There are Bacteriostatic Agents which answer your question in that they inhibit the growth of bacteria which is a microorganism Then there are bactericidal agents (bacteriocide) and they kill bacteria which is a microorganism Agents having the suffix -cidal kill organisms, agents having the suffix -static merely inhibit their growth and reproduction.
How can you kill bacterial cells by centrifugation?
Bacterial cells cannot be lysed (or killed) through centrifugation alone. Although repeated centrifugation and resuspending will kill many bacterial cells as a result of shear stress on the cell membrane
Is chlorhexidine bactericide or bacteriostatic agent?
Bactericidal antimicrobial agents kill the microbe, whereas bactericidal agents inhibit the growth of the microbe. Chloehexidine is an agent that kills bacteria, thus, it is considered a bactericidal antimicrobial agent.
What are the disadvantages of the bacteriostatic method?
Bacteriostatic method can only inhibit the growth of microorganism but doesnt completely kill them.
How Sulfonamides work on human body?
Sulfonamides are a class of antibiotic - the first class of useful antibiotic, in fact. They work by inhibiting the production of folate by bacteria. Because humans cannot make their own folate (we must eat folate produced by other organisms), sulfonamides do not affect human cells. Folate is necessary for the production of DNA and RNA, so inhibiting its production in bacterial cells stops the bacterial cells from dividing. Because sulfonamides to not directly kill the bacteria, only stop their spread, they are called bacteriostatic.
What are the compounds that kill bacterial cells without harming the cells of humans?
They are called antibiotics (meaning against life) and generally interfere in only a few specific chemical reactions, those found in bacterial cells but not human cells.
Bacterial smears are fixed before staining to?
affix the cells to the slide and to kill bacteria
Agents used to kill or inhibit growth of vegetative cells are generally called?
disinfectant
What is the different between bactericidal and bacteriostatic?
BACTERIOCIDE: The agent which kill bacteria is called bacteriocidal it can be done by heat of any chemical. BACTERIOSTATIC: The agent which inhibit the growth and reproduction of bacteria but do not necessasarily kill the bacteria.
Most antibiotics kill invading bacteria while minimally harming the host by?
targeting structures found only in bacterial cells and not the host cells
Differences between bacteriostatic and bacteriolytic agent?
Two possible ones: the bactericidal will kill off many more than just the one you want to target (killing off very helpful ones) or the bactericidal is rather toxic to the host (you). If you use the bacteriostatic, the body will have more time to mount an effective counter attack and win.
